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| Resilient mount with variable antivibration controls for record players |
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| Vibration isolating support device |
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| Motor vehicle exhaust pipe suspension; an assembly including such a suspension |
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| Portable, easily composable supporting skeleton |
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| Cabin for a telescopic gangway |
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| Method for anchoring and straightening walls |
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Fire-barriers
| Details |
Inventors: Cheetham, Ivan C.; Pope, George A.;
Assignee: Dunlop Limited (London, GB2)
Primary Examiner: Marcus; Stephen
Assistant Examiner: Thronson; Mark
Attorney, Agent or Firm: Stevens, Davis, Miller & Mosher
A fire-barrier comprises a composite of three types of fire-retardant materials operable sequentially to combat an increase in temperature, e.g. as occurs on outbreak of a fire, by different methods. A preferred combination of materials is an outer layer of heat reflective material, an inner layer of thermally intumescent material and an intermediate layer of endothermal material between the inner and outer layers. |
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DETAILED DESCRIPTION Having now described our invention what we claim is: 1.
A flexible fluid impermeable hose for conveying fluid, said hose having an inner liner of elastomeric material, a reinforcement structure surrounding said liner and an outer cover surrounding said reinforcement structure, said outer cover comprising a flexible fire-barrier consisting of a fluid impermeable outer layer of heat reflective, material, an inner layer of thermally intumescent material compounded with elastomer, and an intermediate layer of endothermal material between said inner and outer layers.
2.
A hose according to claim 1 wherein said reinforcement structure is bonded to said liner and to said cover.
3.
A hose according to claim 1 wherein said endothermal material is supported on a fibrous fire resistant carrier.
4.
A flexible hose for conveying fluid, said hose having an outer cover comprising a flexible fire-barrier consisting of an outer layer of heat reflective material, an inner layer of thermally intumescent material compounded with elastomer, and an intermediate layer of endothermal material between said inner and outer layers.
5.
A hose according to claim 4 wherein said heat-reflective material is of convolute profile.
6.
A hose according to claim 4 wherein said endothermal material is supported on a carrier.
7.
A hose according to claim 6 wherein said carrier is selected from the group consisting of carbon fibres, asbestos fibres, ceramic fibres and glass fibres, impregnated with said endothermal material.
8.
A hose according to claim 4 wherein said intumescent material includes a carbonific compound.
9.
A hose according to claim 8 wherein said intumescent material further includes one or more of a spumific compound, a blowing agent and a char forming aid.
10.
A hose according to claim 4 wherein said heat reflective material is fluid impermeable.
11.
A hose according to claim 4 wherein said fire-barrier is applied separately as an external wrapping around the article.
12.
A hose according to claim 4 wherein said fire-barrier is formed as an integral part of the hose
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